October 2025 in “Journal of Cosmetic Dermatology” Conventional treatments like dutasteride and minoxidil are effective for male hair loss, with some alternative treatments also showing promise.
10 citations
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January 2011 in “Skin research and technology” Procyanidin oligomers can protect hair from oxidative damage and could be good for hair care products.
30 citations
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May 1999 in “Food and chemical toxicology” Procyanidin B-2 is safe to use on skin as a hair growth product.
27 citations
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September 2017 in “Journal of Medicinal Food” Annurca apple supplement safely increases hair growth and keratin in humans.
13 citations
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January 2017 in “Cosmetics” Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.